View-Master 3D [Animated]

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ViewMaster is the trademark name of a line of special-format stereoscopes and corresponding ViewMaster "reels," which are thin cardboard disks containing seven stereoscopic 3-D pairs of small color photographs on film. It was produced and sold by Sawyer's. The ViewMaster system was introduced in 1939, four years after Kodachrome color film became widely available, making the use of small high-quality photographic color images practical. Tourist attractions and travel views dominated ViewMaster's early lists of available reels, most of which were meant to be interesting to users of all ages. Most current ViewMaster reels are designed for children.